Rocky Castle vs High Octane!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Rocky Castle
Embark on a cartoony tower climbing adventure with lively pets. Navigate hazardous obstacles like spikes, barrels, and fire traps using intuitive swipe controls. Master timing and awareness to conquer challenging levels and reach the top.
- Lighthearted colorful visuals
- Hilarious characters
- Simple and intuitive controls
- Smooth and addictive gameplay
- Retina display support
- iCloud support
- Game Center support
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What happens when lots of lively pets start to climb and conquer the most dangerous tower castles of the world? Find it out yourself! Pick your favorite competitor and overcome the tricky, but pretty hazardous obstacles while climbing up to the top of each tower. Sharp spikes, rolling barrels, heavy rocks, falling platforms, fire traps and jumping bombs among other meanies are waiting for your arrival to wickedly push you back into the abyss. But you should fear not, awareness of the surroundings and fine timing will get you through even the hardest situations! Take the challenge head on! KEY FEATURES * Lighthearted colorful visuals * Tons of hilarious characters * Simple and intuitive controls * Smooth and addictive gameplay * Full retina display support * iCloud support * Game Center support CONTROLS * Swipe left or right to jump onto the next platform * Swipe up to use a switch, enter a door, climb a ladder or jump high * Swipe down to climb or drop down from a ladder TIPS * Every obstacle represents a different threat, be sure to learn the patterns * Don't rush it, pace your actions to avoid unnecessary mistakes * Jump forward if a barrel or rock is coming at you * Coins are always awarded, even if you fail to complete a level * Be aware of all the obstacles visible on screen, not just the next one Please rate Rocky Castle and submit your feedback for further improvements! Facebook: http://www.facebook.com/IstomGames Twitter: http://twitter.com/istomgames isTom Games: https://www.istomgames.com
High Octane!
Embark on a physics-based action platformer adventure as a superhero with randomized stages and comic book-style visuals. Master unique movement mechanics, unlock new gameplay modes, and customize your hero with a variety of outfits. Share your best (or worst) runs with the built-in replay feature.
- Physics-based action platformer
- Randomized stages
- Comic book-style visuals
- Unlockable gameplay modes
- Hero customization with outfits
- Built-in replay feature
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Follow the adventures of High Octane as he makes his way to become a beloved superhero! High Octane is a physics-based action platformer with randomized stages and replayability at its core. Featuring comic book-style visuals and a neon colour palette, the game is quirky, charming, and filled with a plethora of costumes to personalize your hero while fighting crime. It's quick to get into, fresh with each engagement, and allows players to develop real skill as they master Ollie’s movement and maneuverability with growing confidence and precision. UNLOCK GAMEPLAY MODES Modify how you play and discover four different gameplay modes that you can toggle on or off. Collect coins, save squids, defeat enemies, and make deliveries to give you bonuses on your runs. Want to play more casually? Only turn on the modes you like and then hit the town! STYLE YOUR CEPHALOPOD Collect outfits and style Ollie your way as he tries to navigate the harsh, unforgiving world of Superhero Fashion! SHARE YOUR SWINGING STYLE Threaded the needle of certain death? Did a sick loop-de-loop? Failed to save the day in a catastrophic manner? Show off your skills (or lack thereof) and share your runs with the built-in replay feature! The only thing better than saving the day in style is showing it off!
Screenshots
Verdict
Rocky Castle and High Octane! both sit at 4.1 stars, but that hides the real split: 73% of Rocky Castle's written reviews are positive against 44% of High Octane!'s. Rocky Castle also leads on update cadence (every 3 weeks vs every 4 months) and ratings volume (85 vs 8). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Rocky Castle sells 10 one-off in-app purchases and High Octane! sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.1 for Rocky Castle against 4.3 for High Octane!. That said, the two scores are not equally well evidenced: Rocky Castle has 85 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 73% of Rocky Castle's written reviews are positive against 44% of High Octane!'s.
Rocky Castle ships an update every 3 weeks, High Octane! every 4 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | Rocky Castle | High Octane! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (85 ratings) | 4.3 (8 ratings) — better |
| Positive reviews | 72.9% of reviews — better | 44.4% of reviews |
| Number of ratings | 85 — better | 8 |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 277 MB | 91 MB |
| Age rating | 4+ | 9+ |
| Developer | Istom Games Kft. | ZeMind Game Studio Ltd |
Customer experience
Rocky Castle
High Octane!
Bugs and requests
Rocky Castle
Reported bugs
3 issues- Game freezes or crashes after dying
- Ads sometimes open the App Store unexpectedly
- Controls not always responsive
Requested features
4 requests- More levels and worlds
- Ability to restart levels from the beginning
- Option to disable ads or pay for ad-free version
- More character customization options
High Octane!
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Rocky Castle
- Croco$0.99
- Rosmaria$0.99
- Hector$0.99
Show 7 moreShow fewer
- Draco$0.99
- Skipper$0.99
- Fluffy$0.99
- Rex$0.99
- Small Pack$0.99
- Coin Doubler$1.99
- No Ads$1.99
High Octane!
- Double Coin Boost$0.99







